<!DOCTYPE html>
<html>

    <head>
            <link rel="stylesheet" href="样式.css">
            <style>
                    h1{
                        background-color: azure;
                        font-size: 100px;
                        color:brown;
                    }
                    
                </style>
       
     
    </head>


    <body>
        <h1 class="test">
            test
            
        </h1>
    </body>
</html>